Charles Benjamin Redrup designed an engine that was built by Aero Syndicate Ltd. It is an experimental 7-cylinder barrel engine, or "revolver" type.

“Redrup barrel type engine, Fury II”

-These are air-cooled engines. The shown model is the 95 HP called Fury, but the programmed range is from 35 to 85 HP, the largest of these being the Fury II, having the smallest 5 cylinders.

-The central shaft has an inclined plate that is driven by the piston connecting rods. The cylinders are parallel and around the main axis of rotation.

“Fury II, angled rear view”

-The accessories they mount are the typical English ones: two BTH magnetos and a Claudel-Hobson carburetor.

-They are tested on Simmonds Spartan aircraft.

From Appendix 6: A new book has appeared, a biography on Charles Benjamin Redrup entitled "The Knife and Fork Man". It is about his career as an engineer and inventor.

-As a reference, we will only bring here supplementary information to the main text of our publication.

-He worked at Clevedon Stephens, also Vickers around 1913, where he designed and built engines for WWI.

"Unknown Vickers engine?"

-The engine shown is from Vickers at the time of Redrup's passage through this company. He also worked for Avro.

-He made another engine with a Z type crankshaft and oscillating plate or spider for his revolver (or barrel) type engines. They were made for cars, canoes and also for aviation, the one that was mounted on a Simmonds Spartan aircraft.

"Redrup terrestrial version"

"The really nice aero engine"

-Redrup later worked for the Bristol Tramways and Carriage Co. (see), in the 1930's.

-He designed larger aircraft engines after his idea. One of his jobs after WWII was the motorcycle engine with the same principle.

"Demonstrator of a Redrup engine"

-These illustrations are taken from the Internet advertisement for the book on Redrup.

"Book cover"

From Appendix 12: New view of this barrel (or revolver) type engine.

"Excellent image to discern the engine"

-From the E.V.-AEHS Blog we have a color detail of the barrel-type engine but of a smaller size.

“Demo of the Redrup principle with Wobble plate” (E.V.)

-Charles Redrup was born in Wales in 1878. He was an apprentice at the Great Western Railway Co.

-He made his first motorcycle engine in 1901.

-In an attempt to eliminate the gyroscopic effect of radial rotary engines he made the “Reactionless” model with double rotation: the crankcase and cylinders in one direction and the crankshaft in the opposite direction.

"Charles Benjamin Redrup"

"Reactionless motor"

-In 1913 he moved to Leeds to develop the "Hart" (see) radial and after WWI he designed the "Alpha" for Avro as well as a barrel engine for the Crossley car. They were water cooled (1939-45) .

“Two photos of the reactionless engine”

-Before his well-known revolver-type engines (see main text), Charles Benjamin Redrup made a pair of two-cylinder rotary engines, called “Reactionless” like the one in the below illustration from 1905, presented in Farnborough.

“Redrup engine for airship” (Arch. J.A)

"Drawing extracted from the patent"